Demountable-split-rim tool.



J. 1. McLANE.. DEMOUNTABL? SPLIT RiM TOOL.

APPLICATION FILED DEC. 1, 1915- Patented Jan ,1

. ,llvvsrvron,

Kane

JOHN J. meters, or BOSTON, MAssAoH snr'rs.

DEMoUNranLE-srLIT-nIM room.

To all, whom it may concern Be it known that 1, JOHN J. MCLANE, a citizen of the United States, residing at Boston, in thecounty of Suffolk and State of Massachusetts, have invented a new and usein] Improvement'in Demountable-Split-Rim Tools, of which the following is a specifi' cation.

My invention relates to improvements in automobile rim tools for attaching and de taching demountable one-piece split rims and tires to and from each other, the object being to provide a tool which is adjustable tofit any standard size of rim and serves in a dual capacity ;one function being to contract and distort the rim so that the same WiILbecome free from the tire, and the-other "function being to expand the rim when placed within a. tire, so that the ends at the split of the rim will position themselves ad ja'cent' to each other. properly,the latter .Eunction being found to be particularly importantand serviceable when adjusting and setting ri'm to new tires which have not been stretched, wherein the rim at the first instance invariably'positions itself with the ends atthe split overlapping each other, re-

' quirin considerable force to expand the rirnsu ciently' to unlap the ends so that the :80 same will set properly with the tire.

To' these as well as other ends, my inventron consists in the-novel features of con- 3 "struction, iqimbinaticn andjfarrangement of parts, desc llb'ed in the following specifica- 85 tionf hlidparticularly pointed out in the subjoined claims;

, Referring to the accompanying sheet of F'g'llre 1, is a perspective view of my tool,

I iii-shown applied to ademountable' split rim which aboutto be detached from the f tire,-.the the being represented as lying 3 flat on the floor or ground, and the operating lever of'thei-tool being set in the upright positiomready for contracting the rim,

' "Fig. 2, is the same view as Fig. 1,- 'but ,Sh'QWs the-operating lever shifted to .the horizontal position, showing the same coupled withthe adjustable arm, with the rim. conlib tracte'd, and distorted, clearing the tire and mady'ror removal therefrom.

. Fig. 3, shows the rim locked in the contracted and distorted condition by the tool,

Specification of Letters Patent.

as shown in Fig. 2, but removed. from the tire.

Fig. 4, is a sectionalview taken on 'line 4f1 in F ig. 2 showing the'relative positions of the ends of the split rim when contracted and distorted, by the action of the tool thereon.

Fig. 5, is a diagrammatic view of the rim with the tool removed, showing the same contracted as in Figs. 2 and 3.

Fig. 6 is a diagrammatic View showing a usual case where the ends of the split rim assume an overla sped position, requiring the use of the tool as an expansion tool,- the same being shown set within the rim ready to expand it and cause the ends of the same to become unlapped and set properly with the tire. I

Fig. 7, is the same view as Fig. 6, but shows the. rim properly positioned'with the tire and the k y plate set.

Fig. 8, is aid-se'ctipn taken through the operating lever, as sef in Fig. 7, which is the" expanding position oY the tool, showing the forked eccentric end of the lever engaging with the two arms of the tool.

;Fig. 9, is a perspective viewof the tool, showing the same folded and secured in the non-operating position. a a

Fig. 10, is a view taken on line 1010 in Fig. 7, looking 1n thedirection of the arrows, showing the floating-arn1 slidably engaging within the forked supporting mem- Patented Jan. 1, 1918.

Application filed December 1, 1915. Serial No. 64.554.

her provided on the end of thefulcruming and anchoring arm, Like numerals refer to like parts throughout the several views of the drawing.

The numeral 1 represents a shoe of a tire commonly used with pneumatic tires, housing the inner tube 2 which has the usual valve-stem 3 protruding fiirough .the demountable split rim 4 at or near the. split 5 of the same. The rim 4 represents the socalled Baker demountable rim which is usually designed with the diagonal split 5 fitting about the valve-stem-3 and formed by the ends 6 and 7 ,the rim having the clencher-flanges 8 and 9 which fit about the upper and lower clenchenflanges 10 and 11, f

-pling,or, key-plate 13 which bridges across,

the split 5 of: the rim and permits the valvestem 3 of the inner tube to protrude through it, as' shown in Fig. 7.

The rim tool consists of an adjustable ful cruming and anchoring arm 14: which is provided at its extreme outer end with the downwardly projecting hook 153, at its inner end with the extension and forked-guiding end 16, a nd intermediate said ends with the se rice of fulcruming holes 17; the floatingarm 15% which is provided at its extreme outer end with the projcwlting hook memher 19 oppositcly dis 'ioscd to that of the aforesaid. hook 115 (wlnsnhoth arms are unfolded in the worl ing p,o--'ition,) and the engaging inner end '20 which is provided with-the elongated hole 21; and an eccentric operating lever which is provided with the inner eccentric and forked end 23 having the offset fulcruming lugs at the extreme end of said eccentric lever which Wiippurt the fijzlcrulnlug stud 25, which stud pivotally engages with the lulcruming holes 17 of the adjustable anchor arm. 14-, and is preferably pro vided with the hutteri'lymut for readily permitting the shifting: of the adjustable anchor arm 1 f 1'; one fulcrurning hole 17 to any of the oti without the use of extra tool -the eccent end 23 of the lever is also provided with a. second. Set of opposite lugs, 2? which support the pivotally engaging stud 28, which stud pivotally and 'lloatahly engages with the elongated hole 9.1 of the inner endQO of the floating-arm 18 with the operating lever 22. The operating lever-22 is provided at the operating end 29 with the coupling mcmber 30, which is preferably pivotally and floatablv secured thereto for cnalolin the u i b hook end of the same to engage with the adjustablearm 14, as shown in F igs. 2, 3 and 4:, or with the floating'arm '18, as shown in Fig, J -the operating end 29 of the lever 29. being preferably provided at its extreme endwith a prying tip 31 which may be used for prying the coupling or kcy-plete of the-demountable rim ed from its eugag ing position'with the projccti rig acorn-shaped lugs 12. Both the arms of the tool are set within the forked end of the lever as shown.

Having thus described the parts of my invention In deta l, the manner in which the same may be operated is as follows:

Wl1cn the tool 'is not in use the same is folded in the manner. shown in Fig. 9. To set the tool for. detaching a. rim from a tire, the same is unfolded andthc fulcruming stud 25 is set in the proper fuleruming hole 17 for the particular sized rim to be operated upon. The tool, once adjusted for fitting the rim, is then set and positioned with theoperating leycr 22 upright, the hook of the anchoring arm 14 engaging with the top clenchenfiange 8 of the rim 4, and the hook 19 of the floating-arm 18 engaging with the lower clencher ilange 9 near the split 5 of the rim 4, as shown in Fig. 1; the books 15 and 19 thus engaging with the rim at opposite points on opposite clencherflanges. The lever 22 is then forced downward toward the anchoring arm 14, as shown in Fig. 2. The connecting stud 28 of the lever in that operation, engages with the extreme outer end of the elongated hole 21 in the end :20 of the floatingarm 18, and since the lever fulcrumed with the anchor arm 14:, thefioatingmrm 18 is operated upon and forced to draw in, carrying along with it the end 6 of the rim to which it 15 connected, by means of the hook 19 engaging with the lower clenchenflange 9. As the lever 22 is thus operated, the diameter of the rim l becomes contracted d the end ,6 of the same twists itself upwar (due to the tendency of, the tool to assume the position shown in Fig. 4: when engaged in contracting the rim, namely, in bringing the hook 19, at the end (i of the rim, in practically the sameplai'ie that the. hook 15 of the other arm of the tool in, The lever, having been brought into the down poeitiom'shown in Fig. 23, may then be coupled with the anchor arm M by means of the coupling member 30 which. thus locks the tool and consequently holds tho'rim rigid in its contracted and dis torted position, free from the inner diameter of the shoe 1 and readily removable therefrom by means of the lifting of the same by the tool, which holds the rim secured in the commuted position and enables the same to be held in that position as long as may be deeired; it being-understood that through the use of my tool the rim may thus be removed from the tire without the use of other tools for the purpose. With the. rim thus locked in the contracted position, the operator may lift the same from withinthe tire, by means of the tool, and set the same to one side, as shown in Fig. '3;- thus keeping the rim in that locked position, ready to be replaced back-within a ti're.

Now, to resct the. locked rim within a new iire, or a repaired tire, as the case may be, the rim is preferably set with the end 7, adjacent to the valve-stem 3, as shown" in Fig.

The clamping, member 30 is then unlocked from the anchor arm '14 and the lever 22 is allowed to gradually come back to its original position. and at the same time the operator, with his freehand, may be'bearing down on the rim for forcing the some back into engagement. with the tire, In re"- setting the contracted rim within the tire and allowing, it to expand asaboveexplained, iteoften happens, especially when using newandunstretched tires, that the ends (Sand 7 overlap, or that-the rim, in other ways, does. not readjust itself" properly to fit with the tire as it is en posed to. In that event, the expanding tgature of the tool is brought into lay and performs a very imporant function in the following mannera First, the floating-arm 18 is moved back within the lever (which may be folded back toward the anchor arm '14 in the first instance,) so that the engaging stud 28 en gages with the innermost end of the elon gated hole 21 provided in the end 20 of the floating-arm18. The floatingarm-18 (Fig. 8) is also allowed to slidably set within the forked supporting end 16 of the fulcruming and anchor arm 14. The tool is then positioned within the rim so that the hooks 15 and 19 engage with the inner diameter of the rim as shown in Figs. 6 and 7.

With the tool thus set and positioned within the rim, as shown in Fig. 7, the span between the hooks of the arm members may be increased according as may be desired, the floating-arm 18, which is heldagainst buckling in the guide member 16, is forced outward, directly against the rim, and conse quently increases its diameter and expands the same-so that the ends become unlapped and set adjacent to each other, it being understood that the tool may be turned around to operate within any part of the rim, thus affording the operator a means for applying pressure for forcing expansion directly at the point of the rim where the same is found to, be necessary. It must also be understood that when the tool is once adjusted for a. par ticular sized rim that the elongated hole 21 in the floating-arm provides ample clearance to enable the operator to position the tool within the contracted diameter of the run, for the purpose of expanding the same without necessitating further adjustment of the tool.

It may also be understood that by using the tool as an expansion tool,,that the operator may thereby be enabled to readily relace the key-plate 13, after the rim has once een properly set with the tire by applying the tool so that one of the hooks engages directly with the key-plate and the other with the rim. g

It may also lie-observed that by shifting the adjustable-arm from one fulcruming hole to any of the others, that the tool may thus be varied accordingly, and may thus be set to fit different sizes of rims,-it being understood that a sufficient number of fulcruming holes may be provided to cover the range of standard sizes of rims. Also that the setting of the toollfor one .particular size of rim will suflice -to permit the tool to operate on that rim either as a contracting or as an-expension tool, according as may be desired.

While the preferred embodiments of my invention have been described indetail, it

will be understood that I do not wish to be limited to the'particular construction set forth, since various changes in the form, material, proportions, and arrangement of parts and in the details of construction may be resorted to without departing from the spirit and scope of the invention, or destroying any of the advantages contained in the same, heretofore described and defined in the subjoined claims.

What I claim is:

1. A rim tool, consisting of an operatin lever, having'a forked end provided Wit opposite intermediate and opposite end bearings in the fork of said lever; a long arm terminating in a downwardly dis osed hook at the extreme outer end thereof? with a series of intermediate adjusting and fulcruming holes and a forked guide-member at the extreme inner end thereof having" jecting upwardly and opposed to the afore-' said hook of said long arm and provided with an elongated hole near the extreme inner end thereof for affording the tool the adjustable feature for operating the tool on a given size of rim either as a'contracting tool or as an expandin tool; a coupling-stud rigidly secured wit in saidopposite intermediate bearings of said operating lever and adapted to slid-ably and pivotally engage said short arm with said operating lever; anda detachable coupling and fulcruming member detachably secured in said opposite enflfnearings ofsaid lever and adapted to detachably couple said long arm with said operating lever, substantially as shown.

2. A rim tool consistin of an operating lever having a forked end provided with opposite intermediate and and bearings in the fork of said lever, and a handle portion at the other end of said lever provided with a swiveled hook member pivotally secured thereto for coupling said lever with the hereinafter mentioned longarm when the tool is used as a contracting tool and the rim has been contracted; a lon arm terminating ina downwardly disposed hook at the extreme outer end thereof, provided with a series of intermediate adjusting and fulcruming holes and a forked guide-member at the extreme inner end thereof having the fork pro ecting upwardly and opposed to said .hook; a short arm terminating in a hook at the extreme outer end thereof projecting upwardly and opposed to the aforesaid book of said long arm and provided with an elongated hole near the extreme inner end there of for affording the tool the adjustable feaprovided ture for operating the tool on a given size of rim either as a. contracting tool or as an expanding tool; a oouphng-stud rigidly se-.

cured within said opposite intermediate bearings of said operating lever and ada ted -to slidably and pivotally engage the s 011;

arm with said operating lever 5 and a detachable coupling and fulcrummg member detachably secured in said opposite end bearings of said lever and adapted to detachably couple said long arm with said Opereting lever, substantially as shown.

JOHN J. MGLANE. Witnesses:

B. H. CHERTOK, R. LICHTENSTEIN. 

